Incinerator



A. M. NAULIN INCINERATOR Oct. 30, 1934.

' Filed Nov. 9, 1931 3 Sheets-Sheet l /NVE/VTOR Aim" M M//m Br Sig'ham Y ATTORNEY w uw-.

A. M. 'NAULIN Oct. 30, 1934.

INCINERATOR 3 Sheets-Sheet'l 2 Filed Nov. 9, 1951 /NVNTOR Abw/'7 M Mw/m BV ATTORNEY A, M. NAULIN INC INERATOR 3 Sheets-Sheet 3 Filed NOV. 9, 1931 Patented Oct. 30, 1934 UNED STATES PATE T OFFICE This invention relates to incinerators and more particularly to an incinerator for burning trash, garbage and the lil-:e in which the garbage disposalis aided by a controlled secondary ccmbustion. V

Y It is a particular object of the present invention to pro-vide an incinerator having capacity for large objects in a relatively small incinerator.

A further object of the invention is to produce i an incinerator having special draft qualities without sacrificing space Within the incinerator.

A further object of the invention is to provide a gas llame which emerges from the bottom of a burner which is provided with a hood to keep debris from clogging the holes in the burner.

Another object of the invention is to generally improve the construction of incinerators tol reduce the cost of manufacture and generally increase their eiiiciency.

A structure embodying the invention is illustrated in the accompanying drawings and will be hereinafter fully described, the invention residing in certain novel features which will be particularly pointed out in the appended claims.

In the drawings:

Figure 1 shows an elevational view of the incinerator;

Figure 2 is a cross sectional elevational View taken through thecenter of the incinerator and the secondary i'lues; e

Figure 3 is a cross section on the line 3-3 of Fig. 2, parts thereof being shown in section to more clearly illustrate certain other parts;

Figure 4 is a cross section on` the line 4--4 of l Fig. 3;

\ Figure 5 is a plan View of the top of the incinerator showing the cover and the draft mechanism mounted therein; p n

Figure 6 is a cross section on the line 66 of Fig. 2;

Figure '7 is a detail of the burner arrangement, being a cross section on the line 7-7 oi Fig. 4.

Referring to the accompanying drawings in which like numerals indicate like parts throughout the several views, the incinerator comprises a cylindrical outer wall 10 having a bottom 11 sup-` ported from feet 13 and a top 14 having an opening 16 therethrough for the insertion of trash and which is provided with a cover 18 hingedly connected to the top by hinge members 20.

The interior of the incinerator is provided with a wall 22 spaced from the wall 10 to provide an air space 23 therebetween to insulate the iire ccmpartment from the exterior of the incinerator and preventing the wall 10 from heating excessively.

The cylindrical wall22 terminates in a frustreconical member 25 at the lower end which cooperates with brackets 27 in supporting the wall 22 within the incinerator. i

The top 14 is preferably made of a relatively 60 light casting, and is provided with flanges 28 and 30 which retain the upper end of the Walls 10 and 22 concentric.

The front of the incinerator as shown in Fig.

1 is provided with a door 32 through which access 65 to the interior of the incinerator may be had to cleanout ashes and other residue of the iire. The door 32 is hinged on a pair of hinges 33 mounted on a casting 34 xed to the front of the incinerator. The casting has a bracket 36 therein 70 which carries a gas pipe 3S leading gas into the burner, generally designated 40.

The burner 40 has a projection 41 which rests on a bracket 42 supported from the frustro-conical member 25, the opposite end of the burner 75 being supported from the pipe 38. The casting 34 is provided With'a plurality of air inlets 45 which admit air into the interior of the incinerator to provide the primary draft therethrough.

The frustro-conical member 25 mounts a grating composed of a plurality of bars 47 arranged as elements on the frustro-conical surface and projecting therebeyond.

A horizontal grating member 50 pivots on an g5 axis 51 supported at one end in the bracket 42 and at the other end in the casting 34.` The grating 50 is adapted to be turned by a handle 52 fastened to the outer end. of the shaft 51. The handle 52 is held against turning normally by a stop mern- 95 ber 53 fixed to the casting 34.

The interior of the member 22 is provided with a pair of `approximately trapezoidal ducts 55 and 56 on the diametrically opposite sides of the incinerator and running axially of the cylindrical 95 shell 22. The ducts 55 and 56 are provided with ports 58 on the outside of the trapezoidal sections 55 and 56. The ports 58 provide means for entrance of the air at various elevations into the ducts 55 and 56 from `whence the air is carried,A 100 together with the attendant products of combustion through a pair of horizontal duets 60 and 61 running circumferentially about the inner wall of the shell 22 and joining the upper ends of the ducts 55 and 56 With a flue 63, which has a suit- 1054- able chimney attached thereto.

The ue 63 may be of any convenient shape and is herein shown as being approximately elliptical, being closed at the lower end and having the ducts 60 and 61 opening into it above the closed lid Toi end portion. The ducts and 61 have a plurality of ports 64 therethrough while the flue 63 has a plurality of ports 65, the purpose of the ports 63 and 65 being the same as that of the ports 58.

It will be noted at this point that having two ues on the side of the incinerator instead of a single ue in the center as is common in incinerators, that a very much larger package or box can be placed within the incineratcr and burned, than would be possible with a similar diameter of incinerator having the single central ue. The provision of two ducts on the sides likewise provides better draft qualities, insuring a more thorough burning of the garbage and Cleaner ash.

The top of the incinerator, as has been heretofore stated, is made of a light casting and has the cover 18 hinged thereto through the hinges 20, a handle 68 being fixed to the top which provides means to raise the cover.

The cover 18 is provided with a port therethrough in which is fitted a damper or other draft appliance 70 which may be opened to provide a down draft into the incinerator to increase the intensity of the combustion.

Since the damper 70 is at the opposite side of the incinerator from the flue 63, the air will pass downwardly into the trash to be burned and into the ports 58 and thence upwardly and through the flue, thus rendering the down draft effective.

Referring for the moment to Fig. 6, which shows the details of the gas burner, it will be noted that the burner which is circular in plan view as shown at 40 in Fig. 3, has shoulders 73 projecting about the horizontal diameter, which shield the ports '74 so that any trash which is not burned or any ash which may fall through the gratings 47 and 50 will not plug the holes 74 to shut oif the gas.

The gas burner 40 is made in the shape of a ring and is provided with an enlarged bulb-like extension 78 shown in Figs. 3 and 6 which forms a pocket for the gas entering through the pipe 8O and diffuses the gas evenly through the ring burner 40. It has been found that the provision of the pocket 78 permits the use of a variety of different types of gas and that with such an arrangement, the burner is adapted to burn either tank gas, natural gas or bottled gas.

Having thus described the invention, it will be readily apparent to one skilled in the art that applicant has provided an improved incinerator involving controlled secondary combustion which has improved draft qualities and in which a relatively large package, comparative to the diameter of the incinerator, may be disposed of.

'What is claimed as new and desired to secure by Letters Patent is:

1. In an incinerator of the character described, an upright receptacle adapted to receive rubbish to be burned, a grate adjacent the lower portion of the receptacle to support the rubbish, a burner adjacent the grate to direct flames upwardly into the rubbish, a top wall for the receptacle proportion of the sides of the receptacle, a Vertical duct extending along the side wall of the receptacle upwardly from the grate with its upper end portion disposed beneath the imperforate portion of the receptacle top wall, whereby said duct does not interfere with the depositing of rubbish into the receptacle through the opening, said duct having apertures to communicate the interior thereof with the rubbish at vertically spaced points, a flue passing through the imperforate portion of the receptacle top wall and eX- tending down into the receptacle, a duct forming a passage beneath the imperforate portion of the top wall to directly communicate the upper end of the first mentioned duct with the flue, and a movable cover to close the opening in the top wall.

2. In an incinerator of the character described, an upright receptacle adapted to receive rubbish to be burned, means at the lower end of the receptacle to ignite the rubbish and to maintain a ilame in contact therewith, a top for the receptacle having an opening through which rubbish may be deposited into the receptacle, said opening being located to one side with respect to the vertical axis of the receptacle so as to leave a portion of the top adjacent said side walls of the receptacle imperforate, a vertical duct extending from the igniting means at the lower portion of the receptacle upwardly along said side wall of the receptacle beneath the imperforate part of the top wall to convey flame upwardly along the outside of the rubbish in the receptacle, said duct having ap-rtures through which the ilame may contact the rubbish, a ilue passing through the irnperforate portion of the top wall and extending down into the receptacle along one side wall thereof, a duct forming a passage beneath the imperforate portion of the top wall connecting the upper end of the vertical duct and the flue to form a direct communication therebetween, and a movable cover closing the opening in the top wall.

3. In an incinerator, a substantially cylindrical upright receptacle adapted to receive rubbish to be burned, means in the lower portion of the receptacle to ignite the rubbish and maintain a flame in Contact therewith, a top wall for the receptacle provided with an opening through which rubbish is inserted into the receptacle, said op :ning being o center with respect to the vertical axis of the receptacle so as to leave a substantial portion of the top wall adjacent the receptacle side wall imperforate, a plurality of spaced vertical ducts attached to the side wall beneath the imperforate portion of the top wall to lead from the igniting means upwardly within the receptacle, said ducts having a plurality of openings through which a flame projected upwardly into the ducts is permitted to contact the rubbish, a iiue extending down through the imperforate portion or the top wall and attached to the side wall of the receptacle medially of said vertical ducts, and lateral ducts engaging the side wall of A y fiue to form direct communications therebetween, y

and a movable cover to close the opening in the top wall of the receptacle.

ABNER M. NAULIN. 

